By using phase-Doppler anemometry (PDA) measurements within a cold small-scale model for a down-fired 600-MWe supercritical utility boiler, gas/particle flow characteristics were acquired at various staged-air declination angle settings (i.e., 0°, 15°, 30°, and 45°) so as to assess the...

To investigate the aerodynamic field, cold airflow experiments were conducted under different boiler loads in a cold small-scale model of a down-fired pulverized-coal 300 MWe utility boiler. At 300 MWe and 250 MWe loads, a deflected flow field appeared in the lower furnace. In contrast, at a...

To acquire the gas/particle flow characteristics of an in-assembly down-fired 600-MWe supercritical utility boiler, experiments were conducted by using particle dynamics anemometer (PDA) measurement within a two-phase small-scale model at various staged-air ratio settings (i.e., 0%, 6%, and...

The rapid growth in coal and oil consumption has led to increasing emissions of greenhouse gases as well as air pollutants in China. In response to this, the Chinese government has begun to formulate policies to retard the increasing use of energy consumption and to improve air quality. This...

The present work reports studies on the mixing and combustion characteristics of cotton stalk (CS) with 10–100mm in length in a fluidized bed. Effects of length and initial weight percentage of CS, diameter of alumina bed material as well as gas velocity on the mixing characteristics of CS...